Spe. a wa een ome ee nee 7“ (9) - . wie te oe wr cnet ments on Bikini are for locations on the central transect for which the radiation profile is given in Fig. ” én cos Exposure 2. are not inciuded. rates from cosmic radiation (3.4 pr/hr) More detailed data on the measurement of the radiation fields on these islands as well as for the rest of the atoll are given in reference 3. “As indicated in the Table, the . composition of the radiation field on Eneu was cuite similar* Wlape Gt to that of Bikini, i.e. predominantly 7+37Cs with some ®°Co ca ee ete cota, and 125Sb, even though the exposure rate levels were much lower. 7 < ‘The islane of Nam, however, due to its proximity to ‘i several test sites, had several properties of blast areas, pe including higher exposure rates and increased amounts of ®°Co e e and +25Sb in the soil selative to +57Cs. * To complement our field spectrometry on the larger A islands and to characterize the composition of the radiation ae oe shite wae BR: fielc on islands where we were unable to obtain field spectra, aE a large number of soil samples were collected from throughout- - the atoll. These samples, which|were obtained in several pope a . depth increments, were analyzed quantitatively in the labor® atory by Naz (11) garimaspectrometry|andalso qualitatively“Lyra rx 4 by Ge (Li) spectrometry. “We were thus able to obtain not 8 Brey + tee SON ee Mage .ot. cae 9005 Tu5 “ . . oo. eager sa " 70 eterno we - se ae an toons - oo ite wen he oo Perea ; cee ee Ree em re ro a - vm : oo . traps eee ae eras : oesae on e F ° wee feemeee : 7 coe ts se st tee TA re amen | x. TR LPL te eo eee. teed . sere Spon Sedletibelll mamei-rusiduseeaiee eT = oe ee od tanner on . Ae apne ae“ oan eenelliemate opal ~ wee “ye - ‘ “ RE at Fs lage aires a oy OF ATT